Process of producing castings having relatively large section in permanent molds.



E. A. GUSTER. PROCESS OF PRODUCING CASTIFGS HAVING RELA'IIVELY LARGESECTION IN PERMANENT MOLDS,

' APPLICATION FILED DEC, 12, 1910 1,048,404. Patented Nov. 1912.

I i EDGAR It. Cost PM a unfl res mt J 1 the eu Eatutes,

'lphio, in the cou? eex tztin new" and useful improvel wleti'velfy'Large S'eetionin Perms i euee being heel to the ueoom" ngs :50 in a urtthereol.. we l. -known that muohiuuhle ire-o i proelucetl in ostile 11'gthe m'etulof the ousting and then re;

mmthe u permittuigsome to fuerio tem cool to etulheeuuse such lo oo thisghout E1 1h Q of the shop oeeastm s have resulted f of Withdrawing thecasting lirom mold oei ore chillmg any portion theceot 9 consequentlyeohsi'derable oooy of molten metulwoulcl remain in the "erio'r ofthecasting, W7

rise'to segregatlohs.

h Wouhl cool slowly git of an I In gametlsing my improved process thecasting is set deeply so as to form a rela- The o ojeot' of thisinvention is to provide it process-whereby as "relatively l wge ii onfeasting or & C21Sl3l11g=0lf.'COIlSlflBl'ZtblG section which is east ine psrmuneut mold Wlll he homogeneous throughout and which will ooutto'z'mold be entirely free from (llSLUl-lllOIlfw tivelf, thick wall aroundthe molten lion in the intei'io'i'of the casting, which resists the wellknown tendency of the molten metal to l which the followin is uspod- 10hi before the absolutely with the shape of the of Philadelph a; andState of Pennsylvania, have 111- Jventecl w Iii; l roeesses ProducingLastmgs.

' 'utmospherio conditions.-

l '1' .Jl

ess euou '10 ove run j LAB-3E SECTION IN Serial No. 596,927 1 v ld'wlieneoolihg and this ior'oe is', so to 11:, turnedupon 1tself,;thusaroclu-e hg er rstellizat ou and preventmg segregw EENNSYLVANIA, AeoBPoim The deep sejtting is brought about by eomluetmgjthe heat awayfrom the ,m'ol'ten met-n l, of the es stingvry rapidly. This may.

be accomplished by. making the molcl' o'f cast iron OlfSlmllal: metal ofa very 'ls i-g'e bulltcompmecl with the area ofthe ousting is removedborn the casting of the ousting, and the casting is subseci to toe'QLEUOH of themold until the l is about to-ohill tlmt is, 'the point theWhite harcl'crystals are about to ml thereupon the casting is removedthe mold and allowed to cool to noru'lal the accompanying drawings:Figure '1 fVlQWZlYLCl Fig. '2 is a side'elevution oi u mold which may beemployed in practis ing my inveution.

' The mold 'oouipi'ises'the puts a and b hinged together jancl howlingregistering reeesses provided therein to form thematrix 0 oil the mold.'Sin.o'e this invention' is not l eoted teeny specific structural deviceit .1s obvious that the parts a and B'need not .heeessarll'y be hingedtogether, 1101 need the other operating; ports ofthe apparatus he I.lift :tecl 111 accordance wlth. the; embodilueed to the matrix through asuitsole 5 e uieuus as the lever ev zmdlinks f.

greater; if desired, depending upon .the thickness ot the casting.Preferablythe mold has at least sufiioient bulk and radiatlug surface toprevent the-temperature from rising abovfiOO" F.

BY my improved process neht molds Without injuisy to or distortion {themold. The casting will be of fine even shined. Although the casting isremoved from the mold While the interior 1S H1 a molten condition theswlit deep settlng of llGlQlIlillustroted. The molten metal (Z. Themold" is ogfrened and. closed 7 1k 01'? the mold is preferably abouttimes the hull; of the casting, and may be east ings of eon.-' sidemblethicknessmay be cast n permw sin throughout undiuay be easily 'maexgosecl to the action oft-he inold. Theheat and-the setting progresseslicom the exterior toward the centhe exterior portion prevc 1: I idbzafc-re clilling any kind amil also gu'eveu to seal 1i. from becbming(lisnin-lz 4mm,

I claim as my im: re Luci .5 The process of y la ens large tastings ofiii-n in pcrlnmnem nich conuusts which consists in casthwg L mtivelylaw-gag n set deeply Wiflwut uhi t0 form an exu'ker portisn of the. pansion resisting 01 19 ramming She cause sun 20 form --Xp l fiSlOT' mcasting from the I the terior outer lag "e1- :md 09:11pm -11 mew-lthereof is in a, mail 1 wnqiiiun mm than in the rleriol' of the casunsz,and ramming permitting the. wasting in; coal to normal 51% the castingmm film nwlal ba -me the nutey mospheric temperature. The process ofproducing 15 iron having relat" manen'n molds Wb 2m axpzmgion resismolten metal in th poytion has chilled and then to cool in normal am Apmcess m"? pmilzimnggpain-1* having a, relat l, :0 M in n nwlfis, 10h cor c1 mold. having a, hull: of 1101; less film by swiftly rhinos i115 a.re times that of the Outer por'r'zinn of t" tit-y of heat from the outerpartion of the i113; confligimus thereto and coolev casting, remov' 'mmthe mold so as "lo cause he outer pm'lion 0 I l J the Quatm mscastbefcre the outer gel-film). lr'- dilllel and alin"; 0 set (lueglyand farm a resisting Willi- 555 lowmg the ensuing in coal to uhinospnencL novmg the castm from the mold While tei'nperature. the 111*;91'101'lSlllOlllGIl out before the exfim'wr 3. A process of producing ms ingsof iron 1 as chilled, and allowing the same $0 0001 is having; arelatively lu 56- timz. in pemnm normal. atmospheric lempera'tuzt'e.'nemt molds, which conslsts'in swiftly ren10v-- This specification.Sig-L1H} itlfil Wituessc'l ing very large quantity (If heat from theibis 1st day of December, A. 17. 191. casting, thereby setting it(leegfl 'v 31 4 pm clubing' a, thick wall that resis of (.116 moltenme-Lal in 11m wm m a:- are Signed. in presence 0:l- .pzmd and produces alane AMBROSE L QSHEAV throughr. ut the casting 31211107 HELE:MflDlm-mlsy

